/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.spark.execution;

import com.facebook.presto.common.Page;
import com.facebook.presto.operator.UpdateMemory;

import javax.annotation.Nullable;
import javax.annotation.concurrent.ThreadSafe;

/**
 * Implementation of this interface is expected to be thread safe
 */
@ThreadSafe
public interface PrestoSparkPageInput
{
    @Nullable
    Page getNextPage(UpdateMemory updateMemory);
}
